1181218006 has 16 divisors (see below), whose sum is σ = 1812432384. Its totient is φ = 577114344.

The previous prime is 1181218001. The next prime is 1181218009. The reversal of 1181218006 is 6008121811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181218001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50671 + ... + 70213.

It is an arithmetic number, because the mean of its divisors is an integer number (113277024).

Almost surely, 2^1181218006 is an apocalyptic number.

1181218006 is a deficient number, since it is larger than the sum of its proper divisors (631214378).

1181218006 is a wasteful number, since it uses less digits than its factorization.

1181218006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20235.

The product of its (nonzero) digits is 768, while the sum is 28.

The square root of 1181218006 is about 34368.8522648051. The cubic root of 1181218006 is about 1057.0852659659.

Adding to 1181218006 its reverse (6008121811), we get a palindrome (7189339817).

The spelling of 1181218006 in words is "one billion, one hundred eighty-one million, two hundred eighteen thousand, six".